Answer:
−
48828125
Step-by-step explanation:
you can use a calculator for algebra
Answer:
The result is

Or
2.5
Step-by-step explanation:
We want to simplify

We know that 4 goes into 8 twice.
This implies that:

We can convert the result into decimals as follows:

Answer:
If you use the area formula it should be really simple.
Step-by-step explanation:
Have you been taught base x height?
Answer:
C = 20π cm
Step-by-step explanation:
If you want the "exact circumference," use π instead of the usual approximation 3.14 or 3.14159.
Here the circumference is C = 2π(10 cm), or C = 20π cm.